Distribution of the invA, -B, -C, and -D genes of Salmonella typhimurium among other Salmonella serovars: invA mutants of Salmonella typhi are deficient for entry into mammalian cells
نویسندگان
چکیده
منابع مشابه
Selective Amplification of prt, tyv and invA Genes by Multiplex PCR for Rapid Detection of Salmonella typhi
A multiplex PCR-based assay was developed for detection of Salmonella typhi and identification of other salmonella serotypes. Three primer-sets were selected from different genomic sequences, malo2-F/malo2-Ra primers from invasion gene, Parat-s/Parat-as as well as tyv-s/tyv-as primers from O-antigen gene cluster of the genus Salmonella. This method differentiated Salmonella spp., based on size ...
متن کاملHemin-deficient mutants of Salmonella typhimurium.
Nine hemin-deficient mutants of Salmonella typhimurium LT2 were isolated as neomycin-resistant colonies. Five of these mutants could be stimulated by Delta-aminolevulinic acid (Delta-ALA), thus representing hemA mutants. Since S. typhimurium LT2 is not able to incorporate hemin, the identification of the mutants not stimulated by Delta-ALA was made on the basis of the simultaneous loss of catal...
متن کاملDipeptidyl carboxypeptidase-deficient mutants of Salmonella typhimurium.
Mutants of Salmonella typhimurium deficient in dipeptidyl carboxypeptidase have been isolated by screening for clones unable to use N-acetyl-L-alanyl-L-alanyl-L-alanine (AcAla3) as the sole nitrogen source. An insertion of the transposable element Tn10 near dcp (the locus coding for dipeptidyl carboxypeptidase) has been isolated and used to map the locus in the interval between purB and trp, an...
متن کاملSalmonella enterica serovars Typhimurium and Typhi as model organisms
The lifestyle of intracellular pathogens has always questioned the skill of a microbiologist in the context of finding the permanent cure to the diseases caused by them. The best tool utilized by these pathogens is their ability to reside inside the host cell, which enables them to easily bypass the humoral immunity of the host, such as the complement system. They further escape from the intrac...
متن کاملSelective Amplification of prt, tyv and invA Genes by Multiplex PCR for Rapid Detection of Salmonella typhi
A multiplex PCR-based assay was developed for detection of Salmonella typhi and identification of other salmonella serotypes. Three primer-sets were selected from different genomic sequences, malo2F/malo2-Ra primers from invasion gene, Parat-s/Parat-as as well as tyv-s/tyv-as primers from Oantigen gene cluster of the genus Salmonella. This method differentiated Salmonella spp., based on size an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Infection and Immunity
سال: 1991
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.59.9.2901-2908.1991